import { resolve } from 'path'
import type { ConfigEnv } from 'vite'
import { loadEnv } from 'vite'
import { createVitePlugins } from './build/vite'
import { exclude, include } from './build/vite/optimize'
// 当前执行node命令时文件夹的地址(工作目录)
const root = process.cwd()

// 路径查找
function pathResolve(dir: string) {
  return resolve(root, '.', dir)
}

// https://vitejs.dev/config/
export default ({
  command,
  mode
}: ConfigEnv): {
  base: any
  root: string
  server: { port: number; host: string; open: boolean }
  plugins: any
  css: {
    preprocessorOptions: {
      scss: { additionalData: string; javascriptEnabled: boolean; silenceDeprecations: string[] }
    }
  }
  resolve: {
    extensions: string[]
    alias: ({ find: string; replacement: string } | { find: RegExp; replacement: string })[]
  }
  build: {
    minify: string
    outDir: any
    sourcemap: string | boolean
    terserOptions: { compress: { drop_debugger: boolean; drop_console: boolean } }
    rollupOptions: { output: { manualChunks: { echarts: string[] } } }
  }
  optimizeDeps: { include: any; exclude: any }
} => {
  let env = {} as any
  const isBuild = command === 'build'
  if (!isBuild) {
    env = loadEnv(process.argv[3] === '--mode' ? process.argv[4] : process.argv[3], root)
  } else {
    env = loadEnv(mode, root)
  }
  return {
    base: env.VITE_BASE_PATH,
    root: root,
    // 服务端渲染
    server: {
      port: 8080, // 端口号
      host: '0.0.0.0',
      open: env.VITE_OPEN === 'true'
      // 本地跨域代理. 目前注释的原因：暂时没有用途，server 端已经支持跨域
      // proxy: {
      //   ['/admin-api']: {
      //     target: env.VITE_BASE_URL,
      //     ws: false,
      //     changeOrigin: true,
      //     rewrite: (path) => path.replace(new RegExp(`^/admin-api`), ''),
      //   },
      // },
    },
    // 项目使用的vite插件。 单独提取到build/vite/plugin中管理
    plugins: createVitePlugins(command),
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: `@use "@/styles/themes.scss" as *;
            @use "@/styles/variables.scss" as *;
            @use "@/styles/mixins.scss" as *;`,
          javascriptEnabled: true,
          silenceDeprecations: ['legacy-js-api'] // 参考自 https://stackoverflow.com/questions/78997907/the-legacy-js-api-is-deprecated-and-will-be-removed-in-dart-sass-2-0-0
        }
      }
    },
    resolve: {
      extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.scss', '.css'],
      alias: [
        {
          find: 'vue-i18n',
          replacement: 'vue-i18n/dist/vue-i18n.cjs.js'
        },

        {
          find: /\@\//,
          replacement: `${pathResolve('src')}/`
        }
      ]
    },
    build: {
      minify: 'terser', // 指定 JavaScript 代码压缩工具
      outDir: env.VITE_OUT_DIR || 'dist', // 指定打包输出的目录
      sourcemap: env.VITE_SOURCEMAP === 'true' ? 'inline' : false, // 控制是否生成 sourcemap 文件
      // brotliSize: false,
      terserOptions: {
        compress: {
          drop_debugger: env.VITE_DROP_DEBUGGER === 'true',
          drop_console: env.VITE_DROP_CONSOLE === 'true'
        }
      },
      rollupOptions: {
        output: {
          manualChunks: {
            echarts: ['echarts'] // 将 echarts 单独打包，参考 https://gitee.com/yudaocode/yudao-ui-admin-vue3/issues/IAB1SX 讨论
          }
        }
      }
    },
    optimizeDeps: { include, exclude } // 在开发模式下使用的预构建配置 include: 强制将某些依赖包含在预构建中, exclude: 强制将某些依赖排除在预构建之外
  }
}
